(cherry picked from commit 7d4432df)

Local reference table overflow in JNI code fixed.
(cherry picked from commit 457c8785)

(cherry picked from commit b16b50d6)

(cherry picked from commit 568d9583)

Search keys for /proc/sysinfo updated.
(cherry picked from commit db3a35f9)

Camera connect->disconnect->connect leads to sigsegv.
Apply properties method reimplemented.
(cherry picked from commit 710e0709)

(cherry picked from commit 067744d0)

(cherry picked from commit fc935184)
Signed-off-by: Andrey Kamaev <andrey.kamaev@itseez.com>

(cherry picked from commit bd12f636)
Signed-off-by: Andrey Kamaev <andrey.kamaev@itseez.com>

(cherry picked from commit cd59cf3a)
Signed-off-by: Andrey Kamaev <andrey.kamaev@itseez.com>

(cherry picked from commit 47b96407)
Signed-off-by: Andrey Kamaev <andrey.kamaev@itseez.com>

* service
* tutorials
* samples
* gitignore

Conflicts:
	modules/gpu/doc/video.rst
	modules/ocl/doc/ocl.rst